<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="http://www.taobao.com">
    用户名:<input type="text" name="username" maxlength="5"
value="abc" readonly placeholder="用户名"><br>
    密码:<input type="password" name="password" placeholder="密码"><br>
    <input type="radio" name="gender" value="m" id="r1">
    <label for="r1">男</label>
    <input type="radio" name="gender" value="w" id="r2">
    <label for="r2">nv</label><br>
    兴趣爱好:<input type="checkbox" name="hobby" value="xy">洗浴
    <input type="checkbox" name="hobby" value="am">按摩
    <input type="checkbox" name="hobby" value="cb">踩背<br>
    生日<input type="date" name="birthday"><br>


</form>
</body>
</html>